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skad [1K]
3 years ago
9

2. Explain Why would it be difficult to find the volume of a rock using a ruler?

Chemistry
1 answer:
dedylja [7]3 years ago
8 0

Answer:

Most of these rocks are not made up of common geometric shapes

Explanation:

Because most rocks are not made up of common geometric shapes, it would be difficult or impossible to find the volume of a rock using a ruler; there would be no easy way to measure the rock's volume using a ruler

Hope this helped!

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Calculate the atomic mass of silver if 13 out of 25 atoms are silver-107 and 12 out of 25 are silver-109
nekit [7.7K]

From,

RAM=element×its relative abudance/total abudance

=((107×13)+(12×109))/25

The answer is=107.96

3 0
3 years ago
What is the ionic charge for C, Si, Ge, Sn and Pb?
Alecsey [184]
An atom of carbon has 4 electrons in its outermost shell, which means that 
<span>its ionic charge is 4+ or 4-
</span>Si is in same group as carbon so its also 4+ or 4-
Germanium is 4+.
Sn is also 2+ or 4+
Pb is usually +2


6 0
3 years ago
If 0.0692 mol CaCl2 is dissolved in water to make a 0.810 M solution, what is the volume of the solution?
Natali5045456 [20]

Answer:

Just ask google for help

Explanation:

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8 0
3 years ago
1. Energy is expended when a force moves matter across a distance. True/False
Novosadov [1.4K]
1. True
2. True
3. False
4. True
5. True

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8 0
3 years ago
The formula of nitrobenzene is c6h5no2. the molecular weight of this compound is __________ amu.
mafiozo [28]

The molecular weight of a given compound would simply the sum of the molar weights of each component.

 

The molar masses of the elements are:

C = 12 amu

H = 1 amu

N = 14 amu

O = 16 amu

where 1 amu = 1 g / mol

 

Since there are 6 C, 5 H, 1 N and 2 O, therefore the total molecular weight is:

molecular weight = 6 (12 amu) + 5 (1 amu) + 1 (14 amu) + 2 (16 amu)

molecular weight = 123 amu

 

Therefore the molecular weight of nitrobenzene is 123 amu or which is exactly equivalent to 123 g / mol.

4 0
3 years ago
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